<template>
	<div>
		<div class="search">
			<input v-model="keyword" type="text" class="search-input" placeholder="请输入城市或城市拼音">
		</div>
		<div class="serach-content" ref="search" v-show="keyword">
			<ul>
				<li v-for="item of lists" class="search-item border-bottom" :key="item.id" @click="handleCity(item.name)">{{item.name}}</li>
				<li class="search-item border-bottom" v-show="hasNoData">没有找到匹配数据</li>
			</ul>
		</div>
	</div>

</template>


<script>
	import Bscroll from 'better-scroll'
	export default{
		name:'CitySearch',
		props:{
			cities:Object
		},
		data(){
			return {
				keyword:'',
				lists:[],
				timer:null
			}
		},
		computed:{
			hasNoData(){
				return !this.lists.length
			}
			
		},
		methods:{
			handleCity(city){
				this.$store.commit("ChangeCity",city)
				this.$router.push('./')
			}
		},
		watch: {
			//监听器，监听keyword的改变
			keyword(){
				if(this.timer){
					clearTimeout(this.timer)
				}
				if(!this.keyword){
					this.lists=[]
					return
				}
				this.timer = setTimeout(() => {
					const result=[]
					for (let i in this.cities){
						this.cities[i].forEach((value) =>{
							if(value.spell.indexOf(this.keyword)>-1 || value.name.indexOf(this.keyword)>-1){
								result.push(value)
							}
						})
					}
					this.lists=result
				},100)
			}
		},
		mounted(){
			this.scroll = new Bscroll(this.$refs.search)
		}
	}


</script>

<style lang="stylus" scoped>
	@import '~styles/varible.styl'
	.search
		height:.72rem
		background:$bgColor
		padding:0 .1rem
		position:relative
		.search-input
			width:100%
			height:.62rem
			line-height:.62rem
			text-align:center
			border-radius:.06rem
			padding:0 .1rem
			box-sizing:border-box
			color:#666
	.serach-content
		z-index:1
		position:absolute
		top:1.58rem
		left:0
		bottom:0
		right:0
		overflow:hidden
		background:#fff
		.search-item
			color:#666
			line-height:.62rem
			background:#fff
			padding-left:.2rem


</style>